Dust and insect proof package



Patented June 2%, i926.

'v il i FFICE.

JAMES DUVALL, 0F CAMAS, WASHINGTON.

DUST AND INSECT PROOF PACKAGE.

Application filed .Tune 14,

lsly invention has for its object the providing of a dust and insect proof package especialy adapted for shipping dried raisins and other dried fruits, and to produce such package inexpensively A mere box lined with sheets of paper will not answer, because the. she-ets would not provide any seal at the corners of the walls of the box, which are the points most vulnerable to both insects and dust.

Likewise, a mere paper bag would not answer as aI lining for the box, because the fruit packed in the box is compressed more or less, by means of a plate and press, which would tend to burst the bag unless fitted to the walls of the box and 'effectively sup,- ported thereby throughout its surfaces. Be-

sides those portions of the bag projecting above the wall of the box would interfere with the work of said compression plate.

I attain my object by placing the pack of dried fruit in a container consisting of an outer box of firm material, for example wood, and including a cover, the interior dimensions of said outer box being less than the volume of the pack before its compression as hereinafter mentioned; then placing in said outer box a protective lining bag made of flexible material, said bag being of the same form as the interior of the box but of greater length than the depth of the latter, the upper wall portions of the bag being slitted, said slits terminating at the top of the box thus converting the upper or projecting wall portions of the bag into adjacent flaps, then temporarily compressing the pack to form a marginal depression at the top, then releasing the pack and lapping said flaps one over the other over the pack; then pressing inward upon the pack the unslitted upper portions of the bag body to seal the inner ends of the slits between adjacent flaps, then pressing the cover of the box down on the top of the box and securing it in place whereby the pressure of the pack against the cover holds the fiaps firmly in place, and thus maintains said seals.

The details of the construction of my package are illustrated in the figures of the accompanying drawings., in which Fig. l represents a lining tube made of paper and slitted at its opposite ends to provide the flaps at the bottom end for sealing that end, and other flaps at the top end, and the cleSQ provided t0 facilitate 1923. Serial No. 645,434.

the folding o-f the lining tube are indicated by dash-and-dot lines; i*

I Fig. 2 represents the bottom end of the lining tube as sealed, and folded so as to arrange the lining tube into a flat package for temporary storage.

Fig. 3 is perspective view of my lining tubeset up ready to be inserted in the box which it is to line, with the slitted top portions of the walls of the bag turned outwardly, on the creases r; Y

Fig. 4 is a vertical section taken centrally lengthwise of the box, lined with my lining tube, and filled withV fruit ready to be compressed; a rim plate is shown as set on the top of the box through which works the usual follow-plate of the press; land Fig. 'is a similar section las Fig. 4 show.-

ing the package completed with the cover of the outery box in place, and diagrammatically illustrates the ensealing seams formed in the lining. of the box along the top of the latter, thus rendering the package dust and insect proof. i v

Referring now to the reference letters v The paper lining tube shown in Fig. l is made of a thin flexible paper of close texture the length of the tube is less than its width, due to the interior dimensions of the box for which my tube shall constitute the lining. s designates the longitudinal seam of the tube. The lower end of the tube is provided with longitudinal slits j and f forming flaps g, g, g2 and g3. The upper end of the ltube is provided with slits z, and It extending lengthwise of the tube relatively to the height of the walls of the box for which the tube shall constitute the lining and so as to provide the flaps z',- y', 7c, Z; see Fig. 4.

The tube is provided with creases as m, a to facilitate the arranging and pasting of the bottomflaps and the tube is further provided with thelvertical creases p, g, and the horizontal creases o, r; the creases o, 9, adapting the bottom end of the tube, when sealed, to be folded flatwise; the creases o and fr must be located at the top of the box in which the bag is to be inserted; the creases 0, 7, p, g facilitate the setting up of the bag, opened out as shown in Fig. 3, when inserted in the box; and the creases r, further facilitating the arranging of the flaps i, y', 10,Z outward as shown by Fig. 3.

The lining tube is made of such dimensions that when set up it may be readily set into the boX for Which it shall constitute the lining. Then inserted in the box the flaps z', j, lo, Z, will be turned outwardly. Vvvhen so arranged the rim plate fLemay be placed on the top ot the box over the turned out flaps; and when so Aarranged the top of the box will be clear for the inserting of the follow plate t, oit the press, thereby to compress the fruit pack into a more or less solid mass.

The bottom ot the vlelloivi-plate t is'concaved so `that inthe compression of the pack its upper surface Will be rendered convex, and 'thus induce the automatic operations resulting in said ensealing seams of the llnving tube along the top of the box. In short, after said compression of the pack, and the removal ot the compression plate t, the-flaps t', j,-/a, YZ, of the lining tube are lapped crossivise over each other and the upper surface ot the pack; and then the cover, c, o, oitthe-box is placedon the pack and presseddoivn so thatit may be n-ailed in place. In the latter operation said seams are formed, for the cover will engage the ends ot lsaid flaps and hold them against shifting longitudinally; and in consequence as the top of the pack Ais Vdepressed a fullness willbe produced in those portions of the lining located at the junctures, of .the flaps with the body of the lining, henceftorn'iing folds in such portions along the top of the box; and such fulled portions are finally mashed 4down into ensea'ling seams 'extendingv across the inner ends ol' the slits sepfV arating adjacent flaps, and thus closing all crevices at such places and in this Way et'- lectively sealing the open end of the lining tube.

Incidentally my method shortens the labor in making the package.

there a box is merely lined with 4sheet-s ot paper arranged crosswise it usually takes about four persons forethe packing opera tion. o Y

It jnot'only takes time to place the lining sheets properly 'inthe box, but 'the sheets kmust also be held in place. With my. im-

proved method of packing one operator could do the same Work, and do it much better. This is due to the factv that the lining tubeconsists oit :L single'unit, and may be readily placed in the boli which itis to line, and. will stay in place.` The only work in arranging the lining `tu'bef 'isV to turn its flaps tf, j, k', Z, outward, vwhich position the la'ps'aie adapted to assume due to theereasit-25S 20, als descfbsd- Asalreadymentoned in` packing it is @interlaw t0' rlee a @est .-rfri' iframe fol; rim lfli .U Ivr the P fh@ XS 13d let the @110W p13@ Of llSS Wfl llUg-h such rim plate craneoas illustrated in F ig. ll. The construction ot my lining' tube permits its slitted upper ends or flaps .to be turned outward vthus overlapping the top ol the bon, and'said cast iron trame, or rim plate Will hold the flaps in place. It, however, the upper end of the lpaper lining tube were not slitted as at L and L, the use of a rim plate as u, Would be impossible; andA Votl the box, a pack of compressed material,

initially of greater volume than the capacity of said box, but compressed to the depth ol' 'the latter and to lorm a marginal depression at the top, the flaps of the bag being folded one over the other over the top or the pack after its said compression, and the unslitted Wall portions of the bag projecting aboveV the top ot the pack being crushed down into said depression, Whereby Vthe inner ends of said slits between the adjacent flaps are sealed, land the pressure olf the pack against the cover ol' the box hold the llaps lirmly in place and thusr maintains said seals f 2. vA dust and insect proof package coni-y prising a `rectangular outer box made ,ot tirm material and including av cover, and a protective lining-bag made of flexible material inserted in said box, said bag being .ot' the' same form as the interior 4ot' the box but ot greater length than the depth of the latter, the upper Wall .portions ot the bag beingslitted'to provide flaps, the slits terminating at the top of the box, a pack of comy pressed material, initially of greater volume than" the capacity of said box, but compressed to the depthfot the latter and to form depressions at the corners of the top, .he flaps of the bag bein-g folded one over the other over the topV of the pack after its said compression, andthe -unslitted wall portions of the bag projeeti-ng above the top of the bag being crushed down into said depressions,whereby the inner ends ot said slits between the adjacent flaps are sealed,

and the pressure of theV pack laga-inst the cover of the box-hold the flaps firmly in place and thusniaintans saieseals- J DUVAL@ 

